BACKGROUND:A long time ago, someone left a Piranha Plant in the snow. Some years later, explorers dug in the snow, and they found the Piranha. But...
The Piranha was blue and frosty. It started to attack the explorers and it escaped.
The Piranha started to propagate itself and more Piranhas came to life. Today, it's normal to see those Piranhas in the arctic and they are called Frost Piranhas.

EVOLUTION:Frost Piranhas turned up for the first time in Paper Mario. They lived in Shiver Snowfield, there they where very fast. Later, they lived in Fahr Outpost, but they where a little bit slower than in Shiver Snowfield.
Finally, Super Paper Mario came out. Here, you couldn't find Frosty Piranhas so much.